Home / 21,459.48-32,192.16-6,665.64

Finding the Fourth Proportional to 21,459.48, 32,192.16 and 6,665.64

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Solution

The fourth proportional to 21,459.48, 32,192.16 and 6,665.64 is: 9,999.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.48 : 32,192.16 = 6,665.64 : x
  2. Step 2: Convert to fraction form
    21,459.48/32,192.16 = 6,665.64/x
  3. Step 3: Cross multiply
    21,459.48x = 32,192.16 × 6,665.64
  4. Step 4: Simplify right side
    21,459.48x = 214,581,349.38
  5. Step 5: Solve for x
    x = 214,581,349.38/21,459.48
  6. Step 6: Final answer
    x = 9,999.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.